The unique glass shard in this pendant came from a 170 pound industrial door I rescued from being sent to the landfill. I shattered the door, selected the shards, and fire polished it in a 6 hour fusing cycle at temperatures up to 1450 degrees. The wire is 100% copper with a patina created using liver of sulfur which degrades to plant food upon exposure to sunlight. I do not seal my pieces as the coatings eventually peel and are made from toxic chemicals. Wear on a cord of your choosing or add a handmade leather cord with copper clasp or s-link copper chain. Contact me via email for price of cords and chains as cost and shipping time vary. These are made to order at time of purchase.